1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_FRAMEWORKS_DISPLAYSERVICE_V1_0_DISPLAYEVENTRECEIVER_H 18 #define ANDROID_FRAMEWORKS_DISPLAYSERVICE_V1_0_DISPLAYEVENTRECEIVER_H 19 20 #include <android/frameworks/displayservice/1.0/IDisplayEventReceiver.h> 21 #include <gui/DisplayEventReceiver.h> 22 #include <hidl/Status.h> 23 #include <gui/DisplayEventReceiver.h> 24 #include <utils/Looper.h> 25 26 #include <mutex> 27 28 namespace android { 29 namespace frameworks { 30 namespace displayservice { 31 namespace V1_0 { 32 namespace implementation { 33 34 using ::android::hardware::Return; 35 using ::android::hardware::Void; 36 37 class DisplayEventReceiver : public IDisplayEventReceiver { 38 public: 39 Return<Status> init(const sp<IEventCallback>& callback) override; 40 Return<Status> setVsyncRate(int32_t count) override; 41 Return<Status> requestNextVsync() override; 42 Return<Status> close() override; 43 44 private: 45 using FwkReceiver = ::android::DisplayEventReceiver; 46 47 struct AttachedEvent : LooperCallback { 48 AttachedEvent(const sp<IEventCallback> &callback); 49 ~AttachedEvent(); 50 51 bool detach(); 52 bool valid() const; 53 FwkReceiver &receiver(); 54 virtual int handleEvent(int fd, int events, void* /* data */) override; 55 56 private: 57 FwkReceiver mFwkReceiver; 58 sp<IEventCallback> mCallback; 59 bool mLooperAttached; 60 }; 61 62 sp<AttachedEvent> mAttached; 63 std::mutex mMutex; 64 }; 65 66 } // namespace implementation 67 } // namespace V1_0 68 } // namespace displayservice 69 } // namespace frameworks 70 } // namespace android 71 72 #endif // ANDROID_FRAMEWORKS_DISPLAYSERVICE_V1_0_DISPLAYEVENTRECEIVER_H 73